1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IRISSAK [1]
3 years ago
11

If devin has 3 times as many nickels as quarters and they have a combined value of 200 cents how many of each coin does he have

Mathematics
1 answer:
inysia [295]3 years ago
4 0

Devin has 15 nickel coins and 5 quarter coins.

Step-by-step explanation:

Total worth = 200 cents

1 nickel = 5 cents

1 quarter = 25 cents

Let,

Nickels = x

Quarters = y

According to given statement;

5x+25y=200    Eqn 1

x = 3y    Eqn 2

Putting x=3y in Eqn 1

5(3y)+25y=200\\15y+25y=200\\40y=200

Dividing both sides by 40

\frac{40y}{40}=\frac{200}{40}\\y=5

Putting y=5 in Eqn 2

x=3(5)\\x=15

Devin has 15 nickel coins and 5 quarter coins.

Keywords: linear equation, substitution method

Learn more about substitution method at:

  • brainly.com/question/4034547
  • brainly.com/question/4054269

#LearnwithBrainly

You might be interested in
Arithmetic average of real nonnegative numbers is always smaller than or equal to geometric average. Group of answer choices Tru
noname [10]

Answer:

False

Step-by-step explanation:

Actually, the arithmetic average (or mean) is always greater or equal than the geometric average. This is known as the Arithmetic-Geometric inequality (AM inequality). Let a,b be two real numbers, then the AM inequality states that

\frac{a+b}{2}\geq \sqrt{ab}

To see that the given statement is false, consider a=1, b=3. The arithmetic mean is equal to (1+3)/2=2, and the geometric mean is equal to \sqrt{1\cdot 3}=\sqrt{3} but 2>\sqrt{3}, contrary to the statement (arithmetic>geometric in this case).

4 0
3 years ago
X+a=3/4 I don't know how to solve this and I need someone to help explain it to me.
Aneli [31]
I think you should Subtract
a
a
from both sides of the equation.
x=3/4-a and that’s your answer
8 0
3 years ago
The table summarizes the result of spinning the spinner shown.
weqwewe [10]
Hello!

Experimental probability is the probability in relation to the data that has been collected. In this example, adding up the times spun we get 18 times spun. Where red was spun 6 times, this is 1/3 of what was done.

Our answer is B) 1/3.

Hope this helped!
5 0
3 years ago
Read 2 more answers
Multiply 3/7 by the reciprocal of -3/14​
Alexandra [31]

Multiplying 3/7 by the reciprocal of -3/14,

\frac{3}{7} \times  \frac{14}{ - 3} \\  =  \frac{1}{1} \times  \frac{2}{ - 1} \\  =  \frac{2}{ - 1} \\  =  - 2

Hope it helps!!

7 0
2 years ago
Which two points on the number line are opposites? A number line going from negative 2 to positive 2 in increments of 1. There a
Ira Lisetskai [31]

Answer:

Points B and C are opposite

Step-by-step explanation:

0 on the number line marks the center of the number line. To the right on the number line are positive integers and to the left from zero are negative integers.

Points B and C are opposite because they are each half way between 0 and 1 on the right and 0 and -1 on the left

3 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE DONT GUESS, Thank you
    15·2 answers
  • The average value of the function F (T) =(t-4)^2 on [0,9] is
    7·1 answer
  • Tell whether the ordered pair is a solution to the given in equality (-2,1);y<-2x+7
    11·1 answer
  • 11/12 - 3/4 in simplest form​
    12·2 answers
  • When you use a paint can opener to a can of paint you use the paint can opener as a simple machine called a _____ class______
    9·1 answer
  • Eric is studying two number patterns. Pattern A starts at 0 and has the rule "add 6." Pattern B starts at 0 and has the rule "ad
    7·1 answer
  • 2x+1=5x-8 Solving Equations with Many or No Solutions
    14·2 answers
  • 1. If 12 kg of sugar cost $ 250, calculate the cost of 20 kg of sugar.
    13·1 answer
  • Stan ran 4 and StartFraction 7 Over 10 EndFraction miles, which was 1 and StartFraction 3 Over 10 EndFraction fewer miles than M
    8·1 answer
  • Determine which equation is parallel and perpendicular to jk​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!